Delhi's pollution crisis comes in 2 waves: Study

In 2018, Delhi witnessed one peak on November 9, a day after Diwali, when pollution hit the emergency level. Another peak was witnessed between December 23 and 25. Pollution levels hit the emergency levels at least two times after that, largely because of unfavourable wind conditions.

from Hindustan Times - delhi https://ift.tt/2GVlQTk